Results 11 to 20 of about 229,036 (285)

Application of the Riccati hereditary mathematical model to the study of the dynamics of radon accumulation in the storage chamber [PDF]

EPJ Web of Conferences, 2021
The article proposes a mathematical model of radon accumulation in a chamber, which takes into account the hereditary properties of the environment in which radon migrates.
Tverdyi Dmitryi, Parovik Roman, Makarov Evgeniy, Firstov Pavel, Alimova Nazira   +4 more
doaj   +2 more sources

Study on The Effect of Different Plenum Chamber Coefficients on Frosting of Air-cooler [PDF]

E3S Web of Conferences, 2021
The performance of the air-cooler in the refrigeration system plays a key role in improving the energy efficiency. Here, the plenum chamber coefficient was defined to study a possible way of enhancing the refrigeration system performance.
Liu Bin, Shi Shengqiang, Liu Yongshan, Bennacer Rachid, Chen Aiqiang, Theodorakis Panagiotis E.   +5 more
doaj   +2 more sources

Short-term macroinvertebrate recruitment and sediment accumulation: A novel field chamber approach [PDF]

Environmental Toxicology and Chemistry, 2012
Abstract Stream-deposited sediment is one of the major stressors affecting stream biota. Several methods exist to quantify stream sediment embeddedness, but they are relatively qualitative and operationally defined. The authors developed a short-term in situ embeddedness chamber method to measure aquatic insect recruitment and associated
Kochersberger, Jon P., Burton, G. Allen, Custer, Kevin W.   +2 more
openaire   +5 more sources

Study on the key structure parameters of a gravity settling chamber based on a flow field simulation

Engineering Applications of Computational Fluid Mechanics, 2019
A gravity settling chamber plays an important role in improving the effect of the dust removal when it is selected as a dust collector in a pneumatic cleaning system for cleaning a subway tunnel. The settling rate and the indexes evaluating the secondary
Xiaojing Liu, Yicheng Zhang, Qiangyun Wu, Mingfeng Zhang, Fan Liu, Yuanchang Guo   +5 more
doaj   +2 more sources

A Study on the Development of Real-Time Chamber Contamination Diagnosis Sensors

Sensors
Plasma processes are critical for achieving precise device fabrication in semiconductor manufacturing. However, polymer accumulation during processes like plasma etching can cause chamber contamination, adversely affecting plasma characteristics and ...
Junyeob Lee, Kyongnam Kim
doaj   +2 more sources

Fermilab accumulator magnets vacuum chamber heating system [PDF]

Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 1985
The Fermi National Accelerator Laboratory (Fermilab) is building an accumulator ring to store antiprotons for high energy physics proton–antiproton collisions in the Tevatron accelerator. The accumulator ring, approximately 474 m in circumference, consists of many quadrupole and dipole magnets connected with stainless steel vacuum chambers for beam ...
Satti, J.A., Lee, G.N.
  +5 more sources

Non-steady-state closed dynamic chamber to measure soil CO2 respiration: A protocol to reduce uncertainty

Frontiers in Environmental Science, 2023
Non-steady-state closed dynamic accumulation chambers are widely used to measure the respiration of terrestrial ecosystems, thanks to their low cost, low energy consumption and simple transportability, that allow measurements even in hostile and remote ...
Ilaria Baneschi, Brunella Raco, Marta Magnani, Marta Magnani, Mariasilvia Giamberini, Matteo Lelli, Pietro Mosca, Antonello Provenzale, Leonardo Coppo, Massimo Guidi   +9 more
doaj   +1 more source

Radon release rate from soil into the surface atmosphere specifics

Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2021
The paper presents the results of the analysis of long-term series of monitoring data on the radon flux density. They were produced using a accumulation chamber of our own design, which allows, in terms of the readings of alpha radiation counters, to ...
Yakovlev, G.A., Yakovleva, V.S.
doaj   +1 more source

Quantitation of nanoparticle accumulation in flow using optimized microfluidic chambers [PDF]

Journal of Drug Targeting, 2013
The vascular cell adhesion molecule-1 (VCAM-1) targeting peptide sequence, VHPKQHR, is a promising moiety for targeting atherosclerosis through incorporation into nanoparticles such as dendrimers and liposomes.We aim to develop VCAM-1-targeted nanoparticles that effectively accumulate on the endothelium under shear conditions and to develop robust ...
J, Kusunose, M K J, Gagnon, J W, Seo, K W, Ferrara   +3 more
openaire   +2 more sources

Real-time setup to measure radon emission during rock deformation: implications for geochemical surveillance [PDF]

Geoscientific Instrumentation, Methods and Data Systems, 2015
Laboratory experiments can represent a valid approach to unravel the complex interplay between the geochemical behaviour of radon and rock deformation mechanisms.
P. Tuccimei, S. Mollo, M. Soligo, P. Scarlato, M. Castelluccio   +4 more
doaj   +1 more source